Worried over swollen lymph node

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So my 2 yr old girl has a swollen lymph node by her neck below her ear I took her to the dr on Friday and dr said she seems fine she passed her checkup but she said perhaps if she’s getting a cold that may be a reason that it’s swollen. And my baby girl has the sniffles nothing major. But has this happen to anyone that a simple cold causes a swollen lymph node???

I’m worried I googled some info on lymph nodes and it was pretty scary. Dr said if she develops any new symptoms to call her right away but she seems ok for now but I’m still worried.

Past history on my lo when she was 18 months she got Kawasaki and was admitted in children’s hospital for treatment and it affected her arteries and was on medication she’s fine now! But one symptom was swollen lymph nodes and it automatically took back to that and I freaked out! I never want to have to go through that again